Where does “Parahiyangan” come from?

Parahiyangan (Sundanese) comes from Sundanese rahyang, from Old Javanese ra-, from Proto-Malayo-Polynesian *daₐ.

Ancestry of “Parahiyangan”, step by step

Parahiyangan traces back through two separate lines of ancestry.

via Sundanese rahyang

StepLanguageWordMeaning
1Sundaneserahyang—
2Old Javanesera-oblique case marker for common nouns
3Proto-Malayo-Polynesian*daₐ—

via Sundanese pa- -an

StepLanguageWordMeaning
1Sundanesepa- -an—

Words derived from “Parahiyangan”

Every word from Proto-Malayo-Polynesian *daₐ →Every word from Old Javanese ra- →Every word from Sundanese rahyang →